CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 54,170	$ 30,875
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	40,097	38,112
Share-based compensation expense	26,866	27,896
Amortization of operating lease right-of-use assets	2,522	3,804
Deferred income tax benefit	(24,334)	(18,556)
Other	(35)	499
Changes in operating assets and liabilities, exclusive of effects of acquired companies:
Accounts receivable	69,376	77,563
Income tax payable	35,827	25,670
Prepaid expenses and other current assets	(20,240)	(18,381)
Accounts payable	(1,140)	17,547
Operating lease liabilities	(3,461)	(2,246)
Accrued liabilities	(48,006)	(36,951)
Deferred revenue	(61,334)	(71,579)
Other long-term liabilities	1,531	456
Net cash provided by operating activities	71,839	74,709
Cash flows from investing activities:
Additions to property and equipment	(7,282)	(2,020)
Purchase of marketable security investments	0	(10,617)
Proceeds and maturities from marketable security investments	3,271	22,975
Investment in software development	(7,386)	(9,079)
Cost of acquisitions, net of cash acquired	(1,302)	(1,875)
Other	18	16
Net cash used by investing activities	(12,681)	(600)
Cash flows from financing activities:
Payment on term loans	(50,000)	(120,000)
Proceeds from exercise of stock options, net of withheld shares for taxes upon equity award settlement	10,033	(158)
Contributions from employee stock purchase plan	3,553	3,037
Net cash used by financing activities	(36,414)	(117,121)
Net increase (decrease) in cash and cash equivalents	22,744	(43,012)
Cash and cash equivalents at beginning of period	165,493	173,857
Cash and cash equivalents at end of period	188,237	130,845
Supplemental cash flow information:
Cash paid for interest	1,741	6,784
Cash received for income taxes, net	(680)	(548)
Non-cash investing and financing activities:
Non-cash additions to property and equipment	$ 277	$ 201